The invention relates to the technical field of jacks, in particular to a piston rod locking mechanism, a jack and a hydraulic support. The piston rod locking mechanism comprises a sensing part, a proximity switch and a locking part, wherein the sensing part is fixed on a piston rod of the jack; the proximity switch is arranged on the outer wall of a cylinder barrel of the jack; the proximity switch is used for detecting whether the sensing part moving along with the piston rod moves to a preset range; the locking part is arranged on the cylinder barrel; and when the proximity switch detects that the sensing part is located in a preset range, the locking part is used for locking the piston rod to limit movement of the piston rod. When the proximity switch detects that the sensing part moving along with the piston rod moves to the preset range, the piston rod is locked through the locking part to limit movement of the piston rod, and automatic locking of the piston rod on the cylinder barrel is achieved.

    本发明涉及千斤顶技术领域,尤其涉及一种活塞杆锁紧机构、千斤顶及液压支架。该活塞杆锁紧机构包括感应部、接近开关和锁紧部,感应部固定在千斤顶的活塞杆上;接近开关设在千斤顶的缸筒的外壁上;接近开关用于检测随活塞杆移动的感应部是否移动至预设范围;锁紧部设在缸筒上;在接近开关检测到感应部位于预设范围时,锁紧部用于将活塞杆锁固以限制活塞杆移动。本发明通过在接近开关检测到随活塞杆移动的感应部移动至预设范围时,利用锁紧部将活塞杆锁固以限制活塞杆移动,以实现对活塞杆在缸筒上的自动锁紧。


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    Title :

    Piston rod locking mechanism, jack and hydraulic support


    Additional title:

    一种活塞杆锁紧机构、千斤顶及液压支架


    Contributors:
    JIANG JING (author) / GUAN CHUANG (author) / KANG IN-GON (author) / WU GUISHENG (author)

    Publication date :

    2024-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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